Home / 13,809,782.70-20,714,674.05-8,783,376.30

Finding the Fourth Proportional to 13,809,782.70, 20,714,674.05 and 8,783,376.30

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Solution

The fourth proportional to 13,809,782.70, 20,714,674.05 and 8,783,376.30 is: 13,175,064.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809,782.70 : 20,714,674.05 = 8,783,376.30 : x
  2. Step 2: Convert to fraction form
    13,809,782.70/20,714,674.05 = 8,783,376.30/x
  3. Step 3: Cross multiply
    13,809,782.70x = 20,714,674.05 × 8,783,376.30
  4. Step 4: Simplify right side
    13,809,782.70x = 181,944,777,112,995.03
  5. Step 5: Solve for x
    x = 181,944,777,112,995.03/13,809,782.70
  6. Step 6: Final answer
    x = 13,175,064.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.